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C++继承中构造和析构顺序
阅读量:482 次
发布时间:2019-03-06

本文共 468 字,大约阅读时间需要 1 分钟。

子类继承父类后,当创建子类对象,也会调用父类的构造函数

问题:父类和子类的构造和析构顺序是谁先谁后?

代码如下:

#include 
using namespace std;//继承中的构造和析构顺序class Base { public: Base() { cout << "Base构造函数!" << endl; } ~Base() { cout << "Base析构函数!" << endl; }};class Son: public Base { public: Son() { cout << "Son构造函数!" << endl; } ~Son() { cout << "Son析构函数!" << endl; }};void test01() { Son s;}int main() { test01(); return 0;}

结果:

在这里插入图片描述

结论:

继承中的构造和析构顺序如下:
先构造父类,再构造子类,析构的顺序与构造的顺序相反

转载地址:http://ceqdz.baihongyu.com/

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